/*
 * Copyright (C) 2013 Daniel Wasilew <daniel.wasilew@codeminer.org>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.codeminer.parts.devices;

import org.codeminer.database.DatabaseManager;
import org.codeminer.parts.IdentifiableNotFoundException;
import org.codeminer.parts.application.ApplicationComponent;
import org.codeminer.parts.application.ApplicationContext;
import org.codeminer.parts.application.ShutdownCallback;
import org.codeminer.parts.database.DeviceConnector;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * User: Daniel Wasilew <daniel.wasilew@codeminer.org>
 * Date: 21.03.13
 * Time: 07:49
 */
public class DefaultDeviceManager implements ApplicationComponent, DeviceManager {

    private final List<Device> devices = new ArrayList<>();

    @Override
    public void startup(ApplicationContext context, ShutdownCallback shutdownCallback) throws Exception {
        DatabaseManager databaseManager = context.getApplicationPart(DatabaseManager.class);
        DeviceConnector deviceConnector = databaseManager.getConnector(DeviceConnector.class);
        List<StreamDevice> persistedDevices  = deviceConnector.findAll();
        for (StreamDevice persistedDevice : persistedDevices) {
            this.devices.add(persistedDevice);
        }
    }

    @Override
    public void shutdown() {

    }

    @Override
    public Class getDescriptionClass() {
        return DeviceManager.class;
    }

    @Override
    public Device getDevice(Long deviceId) {
        for (Device device : devices) {
            if (device.getOid() == deviceId)
                return device;
        }
        throw new IdentifiableNotFoundException(deviceId);
    }

    @Override
    public void addDevice(Device device) {
        this.devices.add(device);
    }

    @Override
    public boolean removeDevice(Device device) {
        return this.devices.remove(device);
    }

    @Override
    public List<Device> getAllDevices() {
        return Collections.unmodifiableList(devices);
    }
}
